Nonlinear Control and Stability Analysis of Multi-Terminal High Voltage Direct Current Networks

Abstract : This dissertation was devoted to the study of multi-terminal high voltage direct current (MTDC) networks. The main contributions were in the field of nonlinear automatic control, applied to power systems, power electronics and renewable energy sources. The research work was started with the intention of filling some gaps between the theory and the practice, in particular: 1) to investigate various control approaches for the purpose of improving the performance of MTDC systems; 2) to establish connections between existing empirical control design and theoretical analysis; 3) to improve the understanding of the multi-time-scale behavior of MTDC systems characterized by the presence of slow and fast transients in response to external disturbances. As a consequence, this thesis work can be put into three areas, namely nonlinear control design of MTDC systems, analysis of MTDC system's dynamic behaviors and application of MTDC systems for frequency control of AC systems.
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Yijing Chen. Nonlinear Control and Stability Analysis of Multi-Terminal High Voltage Direct Current Networks. Automatic. Université Paris Sud - Paris XI, 2015. English. ⟨NNT : 2015PA112041⟩. ⟨tel-01249585⟩

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